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Pressurization CO2 zero discharge SOFC (solid oxide fuel cell) /GT (gas turbine) /AT (air turbine) /ST (steam turbine) composite dynamical system of integrated OTM (oxyanion transmission film) cathode exhaust producing oxygen

A compound power and zero-emission technology, applied in the direction of machines/engines, electrical components, gas turbine devices, etc., can solve the problems of polluting gas emissions, low efficiency, etc., and achieve the effects of reducing power consumption, increasing temperature, and reducing energy consumption

Inactive Publication Date: 2013-03-13
NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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  • Claims
  • Application Information

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Problems solved by technology

[0003] The present invention does not recover CO 2 SOFC (Solid Oxide Fuel Cell) / GT (Gas Turbine) / ST (Steam Turbine) hybrid power system is the benchmark system, integrating oxygen ion transport membrane (OTM), high temperature air turbine (AT) and CO 2 Re-injection / recovery unit to solve the problem of low efficiency and large amount of polluting gas emission in traditional power generation system

Method used

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  • Pressurization CO2 zero discharge SOFC (solid oxide fuel cell) /GT (gas turbine) /AT (air turbine) /ST (steam turbine) composite dynamical system of integrated OTM (oxyanion transmission film) cathode exhaust producing oxygen
  • Pressurization CO2 zero discharge SOFC (solid oxide fuel cell) /GT (gas turbine) /AT (air turbine) /ST (steam turbine) composite dynamical system of integrated OTM (oxyanion transmission film) cathode exhaust producing oxygen
  • Pressurization CO2 zero discharge SOFC (solid oxide fuel cell) /GT (gas turbine) /AT (air turbine) /ST (steam turbine) composite dynamical system of integrated OTM (oxyanion transmission film) cathode exhaust producing oxygen

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Embodiment Construction

[0019] The invention provides a pressurized CO that integrates OTM cathode exhaust to generate oxygen 2 The zero-emission SOFC / GT / AT / ST compound power system, the present invention will be further described below through the drawings and specific implementation methods.

[0020] The basic system structure diagram is as follows figure 1 Shown: the fuel enters the pre-reformer 7 after being compressed by the fuel compressor 9 and undergoes heat exchange by the third heat exchanger 8, and is mixed and reformed with the recycled part of the anode exhaust gas, and then enters the anode of the SOFC cell stack 4, and the air in the air After the compressor 1 is compressed, it flows through the first heat exchanger 2 and the second heat exchanger 3 in sequence, and the cathode entering the SOFC cell stack 4 undergoes an electrochemical reaction with the anode fuel in the cell stack, and passes through the DC / AC converter 6 output power. Afterwards, the anode exhaust gas is divided i...

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Abstract

The invention belongs to the technical field of pressurization CO2 zero discharge soild oxide fuel battery composite power, and particularly relates to a pressurization CO2 zero discharge SOFC (solid oxide fuel cell) / GT (gas turbine) / AT (air turbine) / ST (steam turbine) composite dynamical system of integrated OTM (oxyanion transmission film) cathode exhaust producing oxygen. The composite dynamical system is characterized in that an SOFC / GT / AT / ST composite dynamical system which cannot recover CO2 is utilized as a reference system so as to integrate an OTM, a high temperature air turbine (AT) and a CO2 recovery unit to obtain a high-efficiency energy-saving environment-friendly CO2 zero discharge composite dynamical system, and the energy of the system can be fully and effectively used in a cascading manner, and the efficiency is high; and the combustion exhaust is only CO2 and H2O so as to be convenient to separate and collect CO2, the power consumption is less, and the system can keep a higher efficiency after recovering CO2.

Description

technical field [0001] The present invention belongs to pressurized CO 2 The technical field of zero-emission solid oxide fuel cell hybrid power, especially relates to a kind of pressurized CO that integrates OTM cathode exhaust gas to produce oxygen 2 Zero-emission SOFC / GT / AT / ST hybrid power system. Background technique [0002] The solid oxide fuel cell uses electrochemical power generation, breaks through the limitation of Carnot's theorem, has high efficiency, and its exhaust gas has a very high temperature. Under pressurized conditions, it can be used with gas turbines, waste heat boilers and steam The turbines form an efficient power generation system. And because of its unique mechanism: fuel and air are not mixed directly, avoiding the N 2 to CO 2 Blending, which provides convenient conditions for improving energy power system efficiency and reducing emissions. The working temperature of OTM is usually 700°C-1000°C, and the cathode exhaust gas of the battery sta...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02C6/00F01D15/10H01M8/04H01M8/06H01M8/04089H01M8/0668
CPCY02E60/50
Inventor 段立强黄科薪杨勇平
Owner NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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